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TDE1898C 데이터시트 PDF




STMicroelectronics에서 제조한 전자 부품 TDE1898C은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 TDE1898C 자료 제공

부품번호 TDE1898C 기능
기능 0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


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TDE1898C 데이터시트, 핀배열, 회로
TDE1897C
® TDE1898C
0.5A HIGH-SIDE DRIVER
INDUSTRIAL INTELLIGENT POWER SWITCH
0.5A OUTPUT CURRENT
18V TO 35V SUPPLY VOLTAGE RANGE
INTERNAL CURRENT LIMITING
THERMAL SHUTDOWN
OPEN GROUND PROTECTION
INTERNAL NEGATIVE VOLTAGE CLAMPING
TO VS - 45V FOR FAST DEMAGNETIZATION
DIFFERENTIAL INPUTS WITH LARGE COM-
MON MODE RANGE AND THRESHOLD
HYSTERESIS
UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
OPEN LOAD DETECTION
TWO DIAGNOSTIC OUTPUTS
OUTPUT STATUS LED DRIVER
DESCRIPTION
The TDE1897C/TDE1898C is a monolithic Intelli-
gent Power Switch in Multipower BCD Technol-
BLOCK DIAGRAM
MULTIPOWER BCD TECHNOLOGY
Minidip
SIP9
SO20
ORDERING NUMBERS:
TDE1897CDP
TDE1898CDP
TDE1898CSP
TDE1897CFP
TDE1898CFP
ogy, for driving inductive or resistive loads. An in-
ternal Clamping Diode enables the fast demag-
netization of inductive loads.
Diagnostic for CPU feedback and extensive use
of electrical protections make this device inher-
ently indistructible and suitable for general pur-
pose industrial applications.
September 2003
1/12




TDE1898C pdf, 반도체, 판매, 대치품
TDE1897C - TDE1898C
SOURCE DRAIN NDMOS DIODE
Symbol
Parameter
Vfsd 2-3 Forward On Voltage
Ifp 2-3 Forward Peak Current
trr 2-3
Reverse Recovery Time
tfr 2-3
Forward Recovery Time
THERMAL CHARACTERISTICS (*)
Test Condition
@ Ifsd = 625mA
t = 10ms; d = 20%
If = 625mA di/dt = 25A/µs
Θ Lim Junction Temp. Protect.
TH Thermal Hysteresis
SWITCHING CHARACTERISTICS (VS = 24V; RL = 48) (*)
ton Turn on Delay Time
toff Turn off Delay Time
td Input Switching to Diagnostic
Valid
Note Vil < 0.8V, Vih > 2V @ (V+In > V–In); Minidip pin reference. (*) Not tested.
Figure 1
Min.
Typ.
1
200
50
Max.
1.5
2
Unit
V
A
ns
ns
135 150
30
°C
°C
100 µs
20 µs
100 µs
DIAGNOSTIC TRUTH TABLE
Diagnostic Conditions
Normal Operation
Open Load Condition (Io < Iold)
Short to VS
Short Circuit to Ground (IO = ISC) (**)
Output DMOS Open
TDE1897C
TDE1898C
Overtemperature
Supply Undervoltage (VS < Vsth1 in the falling phase of the sup-
ply voltage; VS < Vsth2 in the rising phase of the supply voltage)
Input
L
H
L
H
L
H
H
H
L
H
L
H
L
H
Output
L
H
L
H
H
H
<H (*)
H
L
L
L
L
L
L
L
Diag1
H
H
H
L
L
L
H
H
H
H
L
H
H
L
L
Diag2
H
H
H
H
H
H
L
H
H
H
H
L
L
L
L
(*) According to the intervention of the current limiting block.
(**) A cold lamp filament, or a capacitive load may activate the current limiting circuit of the IPS, when the IPS is initially turned on. TDE1897
uses Diag2 to signal such condition, TDE1898 does not.
4/12

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TDE1898C 전자부품, 판매, 대치품
(625mA instead of 500mA).
- All electrical parameters of the device, con-
cerning the calculation, are at maximum val-
ues.
- Thermal shutdown threshold is at minimum
value.
- No heat sink nor air circulation (Rth equal to
Rthj-amb).
Therefore:
Vs = 30V, RDSON0 = 0.6, Iq = 6mA, Ios = 4mA @
Vos = 2.5V, ΘLim = 135°C
Rthj-amb = 100°C/W (Minidip); 90°C/W (SO20);
70°C/W (SIP9)
It follows:
Ioutx = 0.625mA, RDSONx = 1.006, Pq = 180mW,
Pos = 110mW
Figure 5: Application Circuit.
TDE1897C - TDE1898C
From equation 4, we can find:
Tambx = 66.7°C (Minidip);
73.5°C (SO20);
87.2°C (SIP9).
Therefore, the IPS TDE1897/1898, although
guaranteed to operate up to 85°C ambient tem-
perature, if used in the worst conditions, can meet
some limitations.
SIP9 package, which has the lowest Rthj-amb, can
work at maximum operative current over the en-
tire ambient temperature range in the worst condi-
tions too. For other packages, it is necessary to
consider some reductions.
With the aid of equation 3, we can draw a derat-
ing curve giving the maximum current allowable
versus ambient temperature. The diagrams, com-
puted using parameter values above given, are
depicted in figg. 6 to 8.
If an increase of the operating area is needed,
heat dissipation must be improved (Rth reduced)
e.g. by means of air cooling.
DC BUS 24V +/-25%
+IN
+
-IN
-
CONTROL
LOGIC
+Vs
OUTPUT
µP POLLING
D1
D2
GND
Ios
OUTPUT STATUS
LOAD
D93IN014
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